[syzbot] [net?] WARNING in vmxnet3_probe_device
From: syzbot <hidden>
Date: 2026-08-19 01:17:31
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Hello, syzbot found the following issue on: HEAD commit: a5161661ae99 Merge tag 'sound-7.2' of git://git.kernel.org.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=10fb6279580000 kernel config: https://syzkaller.appspot.com/x/.config?x=ead6a6de2292ff28 dashboard link: https://syzkaller.appspot.com/bug?extid=e39090bc9b3cf457717f compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8 Unfortunately, I don't have any reproducer for this issue yet. Downloadable assets: disk image (non-bootable): https://storage.googleapis.com/syzbot-assets/d900f083ada3/non_bootable_disk-a5161661.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/495a21a014c3/vmlinux-a5161661.xz kernel image: https://storage.googleapis.com/syzbot-assets/c83a709756a2/bzImage-a5161661.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+e39090bc9b3cf457717f@syzkaller.appspotmail.com oom_control is deprecated and will be removed. Please report your usecase to linux-mm-@kvack.org if you depend on this functionality. openvswitch: netlink: IP tunnel dst address not specified ------------[ cut here ]------------ vmxnet3 0000:00:00.0: rejecting DMA map of vmalloc memory WARNING: ./include/linux/dma-mapping.h:524 at dma_map_single_attrs include/linux/dma-mapping.h:523 [inline], CPU#0: syz.0.0/5315 WARNING: ./include/linux/dma-mapping.h:524 at vmxnet3_probe_device+0xab8/0x2e70 drivers/net/vmxnet3/vmxnet3_drv.c:4047, CPU#0: syz.0.0/5315 Modules linked in: CPU: 0 UID: 0 PID: 5315 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full) Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 RIP: 0010:dma_map_single_attrs include/linux/dma-mapping.h:523 [inline] RIP: 0010:vmxnet3_probe_device+0xb32/0x2e70 drivers/net/vmxnet3/vmxnet3_drv.c:4047 Code: 89 ff e8 d1 9e 02 fb 4d 8b 2f eb 15 e8 f7 68 93 fa 41 bf 04 00 00 00 41 b6 03 eb 7d e8 e7 68 93 fa 48 89 df 4c 89 f6 4c 89 ea <67> 48 0f b9 3a 48 8b 04 24 48 05 88 c4 00 00 49 89 c6 48 c1 e8 03 RSP: 0018:ffffc9000e24f820 EFLAGS: 00010246 RAX: 1ffff11003a4bc1a RBX: ffffffff90657ca0 RCX: dffffc0000000000 RDX: ffff88801fa17240 RSI: ffffffff8f872e20 RDI: ffffffff90657ca0 RBP: ffffc9000e24f9b0 R08: 0000000000000003 R09: 0000000000000000 R10: dffffc0000000000 R11: ffffed1003a4bcb3 R12: 0000000000000001 R13: ffff88801fa17240 R14: ffffffff8f872e20 R15: ffff88801d25e0d0 FS: 00007fcafb3346c0(0000) GS:ffff88808c53e000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fcafb33d230 CR3: 000000001c30b000 CR4: 0000000000352ef0 Call Trace: <TASK> local_pci_probe drivers/pci/pci-driver.c:332 [inline] pci_call_probe drivers/pci/pci-driver.c:394 [inline] __pci_device_probe drivers/pci/pci-driver.c:455 [inline] pci_device_probe+0x431/0xc90 drivers/pci/pci-driver.c:489 call_driver_probe drivers/base/dd.c:-1 [inline] really_probe+0x254/0xae0 drivers/base/dd.c:706 __driver_probe_device+0x1e8/0x360 drivers/base/dd.c:868 device_driver_attach+0xe0/0x1d0 drivers/base/dd.c:1203 bind_store+0x1d0/0x220 drivers/base/bus.c:267 kernfs_fop_write_iter+0x3a4/0x540 fs/kernfs/file.c:345 new_sync_write fs/read_write.c:595 [inline] vfs_write+0x612/0xba0 fs/read_write.c:687 ksys_write+0x150/0x270 fs/read_write.c:739 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fcafa39e0d9 Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fcafb333fe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007fcafa625fa0 RCX: 00007fcafa39e0d9 RDX: 000000000000000c RSI: 0000200000000140 RDI: 000000000000000a RBP: 00007fcafa435024 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fcafa626038 R14: 00007fcafa625fa0 R15: 00007ffc9d800cc8 </TASK> ---------------- Code disassembly (best guess): 0: 89 ff mov %edi,%edi 2: e8 d1 9e 02 fb call 0xfb029ed8 7: 4d 8b 2f mov (%r15),%r13 a: eb 15 jmp 0x21 c: e8 f7 68 93 fa call 0xfa936908 11: 41 bf 04 00 00 00 mov $0x4,%r15d 17: 41 b6 03 mov $0x3,%r14b 1a: eb 7d jmp 0x99 1c: e8 e7 68 93 fa call 0xfa936908 21: 48 89 df mov %rbx,%rdi 24: 4c 89 f6 mov %r14,%rsi 27: 4c 89 ea mov %r13,%rdx * 2a: 67 48 0f b9 3a ud1 (%edx),%rdi <-- trapping instruction 2f: 48 8b 04 24 mov (%rsp),%rax 33: 48 05 88 c4 00 00 add $0xc488,%rax 39: 49 89 c6 mov %rax,%r14 3c: 48 c1 e8 03 shr $0x3,%rax --- This report is generated by a bot. 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